This is the interpretation of the twelve wings which you saw: For the twelve wings, see 2 Esd 11.1. Contemporary English Version provides a good model for this verse, saying:

• That is the meaning of the twelve large wings that you saw.

Quoted with permission from Bullard, Roger A. and Hatton, Howard A. A Handbook on 1-2 Esdras. (UBS Helps for Translators). Miami: UBS, 2019. For this and other handbooks for translators see here.